It was reported that the procedure was to treat a de novo lesion from the superficial femoral artery to the p1 segment.A cross over approach from femoral was performed.A guide wire was crossed to the lesion, pre-dilatation was performed, and then a 5x80mm supera was attempted to deploy.The thumbslide was fully advanced, then the deployment lock was unlocked and the stent was deployed.When the stent delivery system was attempted to be removed under fluoroscopy, the stent implant moved proximal and a part of the stent moved into the sheath.It was decided to remove the entire system including the stent implant with the sheath.The sheath was changed and a new 5x100mm supera and non-abbott stent were implanted to successfully complete the procedure.There were no adverse patient effects and no clinically significant delay in the procedure.No additional information was provided.
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Visual analysis was performed on the returned device.The reported difficulties were unable to be confirmed due to the condition of the returned device.A review of the lot history record revealed no manufacturing nonconformities that would have contributed to this complaint.Additionally, a review of the complaint history of the reported lot revealed no other complaint reported from this lot.The investigation was unable to determine a cause for the reported difficulties.It may be possible that the distal sheath of the delivery system was entrapped or bent in the anatomy such that the ratchet was unable to properly engage the stent during the final deployment stroke of the thumbslide, or possible that the tip caught on the stent during retraction causing the stent to pull back with the delivery system; however, this could not be confirmed.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.Na.
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